Computer Networking
BCA 5th semester MCQ 2021 
1. Switch is ………..layer device.
a. Data link b. Physical
c. Network d. Transport
--> a. Data link
2. In …….system, resources are allocated on demand. 
a. Packet switching b. Circuit switching
c. Line switching d. Message switching
--> a. Packet switching
3. Automatic repeat request error management mechanism is provided by………
a. Logical link control sublayer b. Media access control sublayer
c. Network interface control sublayer d. Application access control sublayer
--> a. Logical link control sublayer
4. The size of an IP address in IPV6 is………….
a. 4 bytes b.128 bits
c. 8 bytes d. 100 bytes.
--> b.128 bits
5. Which of the following task is not a function of network layer?
a. Routing b. Inter-networking c. Congestion control d. Error control
--> d. Error control
6. Which of the Following task is not a function of network layer?
a. connection-oriented b. Unreliable
c. Transport layer protocol c. Low overhead
--> a. connection-oriented
7. Which one of the following protocol deliver/stores mail to receiver server?
a. Simple mail transfer protocol
b. Post office protocol
c. Internet mail access protocol
d. Hyper text Transfer protocol
--> a. Simple mail transfer protocol
8. Message authentication is the service beyond………..
a. Message confidentiality b. Message integrity
c. Message splashing d. Message sending
--> b. Message integrity
9. Message …………. Means that the data must arrive at the receiver exactly as sent.
a. confidentiality b. Integrity
c. Authentication d. None of the above
--> b. Integrity
10. Which type of topology is best suited for large businesses which must carefully control and coordinate the operation of distributed branch outlets?
a. Bus b. Ring c. Star d. Mesh
--> c. Star
BCA 5th semester MCQ 2021